Rail for railways and tramways.



No. 815,580. PATENTED-MAR. 20,1906.

. I 's, w. DALZELL. I

"RAI-L FOR RAILWAYS AND TRAMWAYS. V

APPLICATION FILED NOV.14, 1905. I I

5155105505: W I III/Baht 6&2 ya /wa wearlng-face without removing uNIrEnSTATES PATENT OFFICE.

SAMUEL WALTER DALZELL, OF GLASGOW, SCOTLAND.

RAIL FOR RAILWAYS AND TRAMWAY S- Specification of Letters Patent.

Patented March 20, 1906.

Application filed November 14:, 1905. Serial No. 287,236-

To all whom it may concern: Be it known that I, SAMUEL WALTER DAL- ZELL,a subject of the King of Great Britain and Ireland, and a resident ofGlasgow, Scotland, haveinvented a' new and useful Improvement in Railsfor Railways and Tramways, of which the following is a specificatlon.

My invention relates to rails for railways and tramways, and moreparticularly to a sectional rail in which the part of the rail which iseX osed to the greatest wear may be applied an removed withoutdisturbing the base of the rail.

My object is to' provide for renewing the the entire I rail, thusincreasing the life of the rail and;

economizlng the cost by keeping the base of the rail or the part whichis not liable to such rapid wear and tear continuously in use during thelife of two or more wearing-faces.

practical embodiment of my invention is represented in the accompanyingdrawings,

in w ich Flgure 1 1s a vlew 1n transverse sectlon, showlng theappllcatlon of the wearlng-face to the base, the base being providedwith a tongue is a partial longitudinal sectlon through. the

and the wearing-face grooved. Fig. 2

The rail is composedof two separate and distinct parts a lower section 1and an upper section 2, this latter being superimposed upon the formerafter the lower section has been set in the usual manner and forceddownward upon the lower section. The lower sectlon (see Fig. 1) isprovided with a tongue 3,

preferably of dovetailed form in cross-section or slightly wider at itsupper than at its lower portion, and the upper section, denoted here by2, is provided with flanges 4 and 5, normally sprung slightly towardeach other and so arranged as to be slightly spread apart when forceddownwardly over the tongue and then having a tendency to spring towardone another to tightly embrace the tongue, and thus [hold the uppersection in position. The edges 6 7 of the tongue and the lower edges 8 90f the flanges may be slightly rounded or beveled to facilitate thespringing or snapping of the flanges over the tongue. The connection,while rigid and sufficiently permanent for use, is, however, of such anature that-the application of an upward pull or leverage on the uppersection,

' whenever because of wear and tear it is found desirable to remove itand renew it, will draw the flanges 4 5 off from thetongue, and thusrelease the section.

What I claim is gitudinal sections superposed one upon another, an upperone of sald sectlons and a section next below it being provided the one1 withla tongue and the other with a groove adapted to fit the ton ue,the said tongue and groove being normal y dovetail or undercut 1ncross-section whereby an upper section may be sprung into lockingengagement with a lower section by a movement directly toward the lowersection,

In testimony that I claim the foregoing as my invention I have signed myname, in resence of two witnesses, this 31st day of ct0- ber, 1905.

' SAMUEL WALTER DALZELL.

Witnesses:

ROBERT THOMSON, CLAUDE GILLIEs.

A railway or tramway rail composed of lon-

